Surveys

Survey operations in progress until 01 apr 20 by M/V ptsc researcher in area bound 14-11.70N 095-51.76E,…

Andaman or Burma Sea · HYDROPAC 4131/19

What this record establishes

Archived notice · 2019-12-18 21:34Z

This notice comes from the historical archive. Its archived status does not establish when or how the reported situation ended.

Source and dates
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · NAVAREA VIII 923/19 132208Z DEC 19.. Issued 2019-12-14 01:07Z. First collected 2026-08-17 13:38Z; last seen in collection 2026-08-17 15:46Z. Collection dates record ingestion, not a new incident or a fresh field observation.
Location covered
Andaman or Burma Sea. The parsed report position is 14.325, 95.842. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

Related notices and cancellation links

Current notices and reporting history in the Andaman or Burma Sea →

issued
2019-12-14 01:07Z
status
Archived notice
authority
NAVAREA VIII 923/19 132208Z DEC 19.
NAVAREA
NAVAREA VIII · named as the source of this relay
sea
Andaman or Burma Sea
position
14.325, 95.842
vessel
M/V PTSC RESEARCHER · 10 messages
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

ANDAMAN SEA.
BURMA.
DNC 03.
1. SURVEY OPERATIONS IN PROGRESS UNTIL 01 APR 20
   BY M/V PTSC RESEARCHER IN AREA BOUND
   14-11.70N 095-51.76E, 14-07.30N 095-48.33E,
   14-26.70N 095-50.81E, 14-24.34N 095-55.18E,
   14-13.84N 096-01.65E, 14-01.05N 095-54.47E,
   14-29.84N 095-48.55E, 13-56.29N 095-47.79E,
   14-15.80N 096-08.23E, 14-23.55N 095-37.82E,
   14-36.78N 095-57.75E, 14-31.25N 095-46.67E,
   14-21.81N 095-45.31E, 14-24.08N 095-43.23E,
   14-28.45N 095-40.63E.
   THREE MILE BERTH REQUESTED.
2. CANCEL HYDROPAC 3839/19.
2. CANCEL THIS MSG 02 APR 20.

Reading this warning

DNC (Digital Nautical Chart)
A reference to one of the regions of NGA's Digital Nautical Chart, used to tell the reader which charts a warning affects.
Survey operations
A research or survey vessel is mapping the seabed or water column, often while towing equipment.
Position (degrees and minutes)
How warnings write positions: degrees, a hyphen, then minutes, with N/S and E/W — 49-40.8N 003-43.8W.
Wide berth requested
Keep well clear — or, when a distance is given ("TWO MILE BERTH REQUESTED"), at least that far away.
Cancellation reference
A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
HYDROPAC
The U.S. long-range warning series for the Pacific outside NAVAREA XII and for the Indian Ocean, Persian Gulf and adjoining seas.
CANCEL THIS MSG
The warning's own expiry: a line telling the reader when the message cancels itself.

All warning terms →

Collected reports in this area · survey operations

77 within 180 nm since 2012 · 1 in the last 12 months · 0 listed in force now

12
15
20
25
26

Counts include repeat notices about the same situation. NGA archive coverage ends 2024-05; live collection began 2026-08-17. The period between them is incomplete. An empty year is not evidence that no hazards occurred.

Month of issue in the collected archive

J
F
M
A
M
J
J
A
S
O
N
D

All available years combined. Uneven collection and repeat bulletins affect these counts; this chart does not measure the seasonality or probability of incidents.

Nearby notices listed in force · within 120 nm

No other collected notice is currently listed in force within this radius. This does not establish safe conditions.

Worldwide in the collected sources

55 survey operations listed in force · see all

Record snapshot 2026-10-02 02:57Z; source collection times vary.

Surveys

Hydrographic and scientific survey vessels, often towing long arrays. All current survey operations →

Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.